I am trying to install Ubuntu 11.04 on my Core 2 Duo PC using the 'Ubuntu installer for Windows' so that I can dual-boot to Windows 7 (32bit) or Ubuntu 11.04. I already have the x86 alternative ISO with me. I have placed the ISO file in the same folder as the Ubuntu installer EXE. However, the installer doesn't care about the ISO I placed and downloads the amd64 version of ISO.

How do I make the Ubuntu installer for Windows to download & install 32 bit version?